build(travis): gracefully shut down the sauce connect tunnel after the tests are done running

This is to prevent sauce connect tunnel leaks.

Author: IgorMinar

.travis.yml

@@ -61,6 +61,7 @@ script:
   - ./scripts/travis/build.sh
 
 after_script:
+  - ./scripts/travis/tear_down_browser_provider.sh
   - ./scripts/travis/print_logs.sh
 
 notifications:

lib/browserstack/teardown_tunnel.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -e -o pipefail
+
+
+echo "Shutting down Browserstack tunnel"
+echo "TODO: implement me"
+exit 1

lib/saucelabs/teardown_tunnel.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -e -o pipefail
+
+
+echo "Shutting down Sauce Connect tunnel"
+killall sc

scripts/travis/tear_down_browser_provider.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+# Has to be run from project root directory.
+
+./lib/${BROWSER_PROVIDER}/teardown_tunnel.sh